Abstract: An insulation blowing machine is provided, comprising an upper section, comprising a hopper, an agitator, and an agitator motor coupled to drive the agitator; a base, comprising a blower, an airlock, and an airlock motor coupled to drive airlock paddles within the airlock; and a pivoting mechanism connecting the upper section with the base, whereby the upper section is tiltable on the pivoting mechanism away from the base to an open position without disassembly or disengagement of components in the upper section from components in the base to expose the airlock paddles within the airlock; whereby, in operation insulation fed into the hopper passes through an opening in the bottom of the hopper and into the airlock to be discharged through an outlet.

Abstract: A vacuum machine is provided, comprising: an engine secured to a frame and having an engine shaft; an impeller coupled to the engine shaft; a shroud surrounding the impeller and having an inlet and an outlet; a disk secured to the frame between the engine and the shroud, the disk having a plurality of spaced-apart notches around its perimeter; and a spring-loaded latch pin secured to the shroud and configured to engage one of the notches when in a first, locking position, and to disengage from the notch when in a pulled-back, unlocked position, thereby permitting the shroud to rotate about the impeller and lock in any of a plurality of positions corresponding to the plurality of notches.

Abstract: An insulation blowing machine is provided, comprising an upper section, comprising a hopper, an agitator, and an agitator motor coupled to drive the agitator; a base, comprising a blower, an airlock, and an airlock motor coupled to drive airlock paddles within the airlock; and a pivoting mechanism connecting the upper section with the base, whereby the upper section is tiltable on the pivoting mechanism away from the base to an open position without disassembly or disengagement of components in the upper section from components in the base to expose the airlock paddles within the airlock; whereby, in operation insulation fed into the hopper passes through an opening in the bottom of the hopper and into the airlock to be discharged through an outlet.